﻿//The MIT License

//Copyright (c) 2009 Lluis Sanchez, Nick Darnell

//Permission is hereby granted, free of charge, to any person obtaining a copy
//of this software and associated documentation files (the "Software"), to deal
//in the Software without restriction, including without limitation the rights
//to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//copies of the Software, and to permit persons to whom the Software is
//furnished to do so, subject to the following conditions:

//The above copyright notice and this permission notice shall be included in
//all copies or substantial portions of the Software.

//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//THE SOFTWARE.

using System;
using System.Reflection.Emit;

namespace Polymorph
{
    public class CodeLabel : CodeStatement
    {
        private String m_name;
        private Label m_label;

        public CodeLabel(String name)
        {
            m_name = name;
        }

        public String Name
        {
            get { return m_name; }
        }

        public Label GetLabel(ILGenerator gen)
        {
            if (m_label == null)
                m_label = gen.DefineLabel();

            return m_label;
        }

        public override void Generate(ILGenerator gen)
        {
            gen.MarkLabel(GetLabel(gen));
        }

        public override void PrintCode(CodeWriter cp)
        {
            cp.Write(m_name);
            cp.Write(":");
        }
    }
}